Home / 30,067.21-45,076.51-12,550.15

Finding the Fourth Proportional to 30,067.21, 45,076.51 and 12,550.15

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Solution

The fourth proportional to 30,067.21, 45,076.51 and 12,550.15 is: 18,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.21 : 45,076.51 = 12,550.15 : x
  2. Step 2: Convert to fraction form
    30,067.21/45,076.51 = 12,550.15/x
  3. Step 3: Cross multiply
    30,067.21x = 45,076.51 × 12,550.15
  4. Step 4: Simplify right side
    30,067.21x = 565,716,961.98
  5. Step 5: Solve for x
    x = 565,716,961.98/30,067.21
  6. Step 6: Final answer
    x = 18,815.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.